Coal-hoist.



No. 735,965. PATENTED AUG. 11, 1903.

G.`GILLPOY.

COAL HOIST.

APPLICATION FILED AUG. 4, 1902.

3 SHEETS-SHEET l.

N0 MODEL.

PATENTED AUG. 1l, 1903.

G. GILLPOY.

GOAL HOIST.

APPLmATloN FILED AUG. 4, 1902.

3 SHEETS-SHEET 2.

N0 MODEL.

f gygy rens Co, rncrmuma, wnsmNGwN n UNITED STATES] Patented August 11, 1903'. i

PATENT OFFICE.

COAL-HOIST.

SPECIFICATION forming part of Letters Patent No. 735,965, dated August 11, 1903. Application iiled August 4, 1902. Serial No. 118,257. (No model.)

T0 all whom it may concern:

Be it known that I, GEORGE GILLFOY, a citizen of the United States, residing at,What cheer, in the county of Keokuk and State of Iowa, have invented certain new and useful Improvements in Coal-Hoists and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention has for its object to provide a new and improved self-dumping coal-hoisting cage or hoist adapted for use in mines for` elevating the coal from the bottom of the shaft and dumping it at any suitable place.

The invention is so constructed asto reduce the danger of a premature tippingY or upsetting of the cage to a minimum, the grooves or guides at the sides curving at the top and the cage being stayed by the rollers or wheels in the grooves, as will be clearly described hereinafter, and, further, the present invention can be adapted to any shaft at small expense and can be used with or without wings or landers to hold the weight of car when it stops. This is done by extending the guides straight up, with a switch where the curved portion begins, thereby making the appliance perfectly safein the hoisting of men and the handling of dirt or ore.

The present invention is so constructed as to avoid the usual false or extra bottom inside of the cage-frame, and which is usually equipped with a complex number of latches, levers, and springs to hold the device into position, thereby simplifying the construction.

With these objects in View the invention consists of the details of construction and arran gement,which will more fully appear hereinafter.

In the accompanying drawings, which vform a part of the application, Figure l is a side elevation showing the invention. Fig. 2 is a front elevation of the parts shown in Fig. l. Fig. 3 is a sectional elevation of the framework,showi'ngthecartiltedordumped. Fig. 4 is a perspective view of the upper portion of the framework, the hoisting-cage being removed. Fig. 5 is a perspective View of the hoisting-cage.

Likenumeralsand letters of reference indicate corresponding parts in the several In order to enable those skilled in the art to which my invention appertains to use the same, I` will now describe the device in detail, referring to the drawings.

Referring now tothe drawings by numerals or letters, it will be seen that the framework of the device is made up of uprights l, 2, 3, and 4 and are connected together by suitable cross-beams, so as to form a rectangular frame A. The four upper ends of the rectangular frame A are connected together by beams a, b, c, and d, and the opposite pairs b and d serve as supports to the bracket B, which has journaled thereon the pulley C, over which runs the lowering-rope D, which is connected to the eyes 5, which are attached to the bails c', said bails being connected to the top of the hanger H, said hanger being attached to the hoisting-frame E. The cable D runs over l the pulley O and is operated by any suitable power. Arranged on each side of the said framework and diametrically opposite to each other are the guides F, and each has situated therein 'the raceway 6, the upper ends of which curve forward in order to allow theA hoisting-frame E to be tilted forward in the operation of dumping. The hoistingframe E is situated between the guides F and is provided with guide-blocks 7, which lie and move in the raceways 6 to guide the hoisting-cage and preserve it in its upright position.

Through the lower ends 8 of the uprights 9, which form a part of the hoisting-frame E, passes the shaft 10, the ends a of which project through the blocks 7, said blocks being situated in the raceways 6 and serve as a guidance to the hoisting frame or cage E. On the upper ends of the side pieces or uprights 9 are studs w, which enter the curved upper portions of the raceway. Slots 11 are provided on each side of the platform G of the hoisting-frame and through which pass the sides a of the hanger H, the vlower ends of which are pivoted to the shaft l0. Attached to the top of the hanger H are the lower ends of the pivoted bails c', the looped or closed ends being adapted to be swung over the top l section, said bails being provided at the cen- ICO ter with eyes 5 to be engaged with the bifurcated or forked ends of the lowering-rope D. Pivoted to the top of the said hoisting-frame by means of the pivotal loops d' is the safety device consisting of a har e, to the outer ends of which are pivoted the sections f. An eye gis situated on the section c and is connected to the lower end of the lowering-rope D by the rope I. A spiral spring K is attached to the top of the hoisting-frame and to the lower side of the bar e. Upon the platform G of the said hoist is arranged a section of a railroad 702, adapted to receive a du mping-car n?, which is made in the ordinary manner and can be made of any suitable material and is provided with the usual wheels 13. Guiderails 14 are provided on each side of the platform G and serve to steady the car and to obviate any sidewise movement and to hold the car in position upon the said platform -when in the operation of dumping. A locking device for 4locking the car upon the platform G is provided and is situated upon the bottom of the hoisting-platform G and consists of the operating-levers 15, the inner ends of which are pivoted together at 16, the said operating-levers 15 being pivoted to the bottom of the platform G at 17 and 18, respectively. A series of pivoted bolts 19 are provided, the inner ends of which are pivoted at 20 to the operating-levers 15, and the outer ends of'the same are inserted through the slots 21, situated in the inner rail of the railroad-section k2, and serve to chock the wheels 13 of the car and to prevent the same from rolling forward or backward 0E the hoistingplatform.

The operation of the above-described device is as follows: As the drum is revolved upon which the hoisting-cable is reversely wound the hoisting-cage is raised and the studs a; and blocks 7 move upwardly in the raceways 6, the platform remainingin a horizontal position until the guide-'blocks 7 strike the forwardly-curved portion of the raceway 6, when the tilting operation begins, and as the studs .fr move farther along the curved portion of the raceway 6 the tilting of the platform G becomes more pronounced until the contents of the car is dumped into a chute mounted upon the framework in any suitable manner or capable of being raised or lowered by blocks, as desired.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a coal-hoist, the combination, with a framework, having guides, the upper ends of which curve forward and adapted for tilting the platform 12, a tilting platform being pivoted to the shaft 10, the outer ends of which project through guide-blocks 7, the guideblocks 7, which lie and move in said raceways, studs :c situated upon the upper ends of the uprights 9 and which lie and move in said raceway in such a manner that upon hoisting said hoisting-frame they press against the upper sides of the upper curved portions of the raceway thereby tilting the said platform, and means for raising and lowering the said hoisting-cage, substantially as set forth and de-` scribed.

2. In a coal-hoist, the combination, with a framework, having guides upon opposite sides thereof, the upper ends of which curve forward, raceways situated in said guides and having forwardly-curved upper ends, a hoisting-cage, consisting of a bracket and a tilting platform the sides of said bracket passing through slots located in the sides of the tiltingplatform and pivoted to the said shaft l0, guide-blocks 7, connected to the outer ends of the shaft 10, and sliding in said raceways, studs said studs operating in said raceways,and when the hoistin g-cage is raised,

pressing against the upper sides of the raceway thereby causing the tilting of the said platform, pivoted hails, pivoted to the top of the said hanger and adapted to be swung over the safety device and to which are fastened the ends of the hoisting-rope, a safety device connected to the top of the said hanger, substantially as set forth.

3. In a coal-hoist, the combination with a framework, having guides diametrically opposite each other and the upper ends of which are curved forwardly, raceways situated in said guides, a hoisting-cage operating in said guides, said hoisting-cage consisting of the hanger-frame H and a tilting platform, guideblocks for guiding the said hoisting-cage in said raceways, a locking device situated upon floor of said platform, and adapted to chock the wheels of the car, a guide-rail, mounted upon each side of the platform, substantially as set forth and described.

4. In a coal-hoist, the combination of a framework, having guides upon opposite sides thereof, and the upper ends curved forwardly, raceways situated in said guides and the upper ends so curved as to cause the tilting forward of the platform when the guide-stud comes in contact with the upper sides of the curved portion of the said raceways, a locking device situated upon floor of said platform and consisting of operating-levers pivoted to fioor of said platform and pivotally connected at their inner ends, bolts pivoted to said operating-levers and adapted for insertion through slots situated in inner rail of said railroad, and means for raising and lowering the hoisting-frame, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE GILLFOY. Witnesses:

SAM GILLFOY,

J. CAL WILLIAMS.

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